Answer:
70cm2
Please mark
Step-by-step explanation:
sorry if this is wrong but i think the answer is 21
"Conjeture" is not one of the three categories of Euclid's geometric principles.
Euclidean geometry begins with Euclid's Elements, which is both a sum of the geometric knowledge of the time and an attempt to formalize this knowledge mathematically.
The notions of straight line, plane, length, area are exposed there and form the support of elementary geometry lessons. The conception of geometry is intimately linked to the vision of the ambient physical space in the classical sense of the term.
Learn more about Euclid in brainly.com/question/1674393
